--- /dev/null 2017-11-16 08:17:56.803999947 +0100 +++ new/src/jdk.internal.vm.compiler/share/classes/org.graalvm.compiler.core.test/src/org/graalvm/compiler/core/test/IntegerStampShiftTest.java 2019-03-16 05:58:02.445430366 +0100 @@ -0,0 +1,71 @@ +/* + * Copyright (c) 2019, Oracle and/or its affiliates. All rights reserved. + * DO NOT ALTER OR REMOVE COPYRIGHT NOTICES OR THIS FILE HEADER. + * + * This code is free software; you can redistribute it and/or modify it + * under the terms of the GNU General Public License version 2 only, as + * published by the Free Software Foundation. + * + * This code is distributed in the hope that it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License + * version 2 for more details (a copy is included in the LICENSE file that + * accompanied this code). + * + * You should have received a copy of the GNU General Public License version + * 2 along with this work; if not, write to the Free Software Foundation, + * Inc., 51 Franklin St, Fifth Floor, Boston, MA 02110-1301 USA. + * + * Please contact Oracle, 500 Oracle Parkway, Redwood Shores, CA 94065 USA + * or visit www.oracle.com if you need additional information or have any + * questions. + */ + + + +package org.graalvm.compiler.core.test; + +import org.junit.Test; + +public class IntegerStampShiftTest extends GraalCompilerTest { + + public static int unsignedShiftPositiveInt(boolean f) { + int h = f ? 0x7FFFFFF0 : 0x7FFFFF00; + return h >>> 8; + } + + @Test + public void testUnsignedShiftPositiveInt() { + test("unsignedShiftPositiveInt", false); + } + + public static int unsignedShiftNegativeInt(boolean f) { + int h = f ? 0xFFFFFFF0 : 0xFFFFFF00; + return h >>> 8; + } + + @Test + public void testUnsignedShiftNegativeInt() { + test("unsignedShiftNegativeInt", false); + } + + public static long unsignedShiftPositiveLong(boolean f) { + long h = f ? 0x7FFFFFFFFFFFFFF0L : 0x7FFFFFFFFFFFFF00L; + return h >>> 8; + } + + @Test + public void testUnsignedShiftPositiveLong() { + test("unsignedShiftPositiveLong", false); + } + + public static long unsignedShiftNegativeLong(boolean f) { + long h = f ? 0xFFFFFFFFFFFFFFF0L : 0xFFFFFFFFFFFFFF00L; + return h >>> 8; + } + + @Test + public void testUnsignedShiftNegativeLong() { + test("unsignedShiftNegativeLong", false); + } +}